micron

[kopend]

how big is a micron in mm

[Count-A-Strong]

0.001mm

[R1Geezer]

Micro means million, micron meaning millionth, in this case, milionth of a metre, 0.001mm as the count correctly points out.

[ChuckFickens]

Not often I'd dare post a wikipedia link in science, but it explains it well.
http://en.wikipedia.org/wiki/SI_prefix

[Azalian]

A micron is one thousandth of a millimetre

[R1Geezer]

.........and one millionth of a metre

[heathfield]

Looks like we're all agreed on that one.

[JonnyBoy12]

Yes, that is the correct answer. Just to add to the discussion I would like to add that a nanometer is a billionth of a metre, or a millionth of a millimetre. If a nanometer were the size of a marble a meter would be the size of the Earth.

[beso]

Why stop with nanometers. (The wavelength of light is measured in them.)

All the following steps are one thousandth of the preceding unit.

Then we have picometres, femtometres, attometres, zeptometres and yoctometres.

Unsurprisingly, the cost of absolutely anything per yoctometre is extremely low.

[Count-A-Strong]

That's incorrect beso as cutting anything into yoctometers has to be done via a nano slicer which are very expensive.

[THECORBYLOON]

No doubt they'll be on QVC soon...

[Rasman]

I disagree Beso, the cost of measuring 1 yoctometre of anything and producing it would be prohibitively expensive.

[Rasman]

You beat me to it count

[Whickerman]

I dropped a cubic yochtometer of stuff on my carpet and I'm having some trouble finding it - any ideas?

[beso]

Sure one yocometre would have a high cutting cost added. However the yocometre price says nothing about the minimum purchase amount.

I will have a pentillion yocometres please.